Accession Number:

ADA109765

Title:

Corps of Engineers' Experience with Automatic Calibration of a Precipitation-Runoff Model.

Descriptive Note:

Technical paper,

Corporate Author:

HYDROLOGIC ENGINEERING CENTER DAVIS CA

Report Date:

1980-05-01

Pagination or Media Count:

13.0

Abstract:

Computer program HEC-1, a precipitation-runoff model widely used throughout the United States, includes the capability to estimate automatically any of twelve parameters necessary to model the precipitation-runoff process and the channel routing process. The parameter estimation scheme employs Newtons method to minimize a weighted sum of squares of differences between observed and computed hydrograph values. Applications of this parameter estimation procedure are presneted, and typical steps of the procedure for deterimining optimal parameter estimates are outlined. Recent efforts to improve the estimation algorithm and recent use of the calibration capability to update sequentially parameter estimates in a flood forecasting application are discussed. Author

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Computer Programming and Software
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE